(x^2-y^2/x)[-x^2/(x-y)^2]
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(x^2-y^2/x)[-x^2/(x-y)^2](x^2-y^2/x)[-x^2/(x-y)^2](x^2-y^2/x)[-x^2/(x-y)^2](x^2-y^2/x)[-x^2/(x-y)^2]
(x^2-y^2/x)[-x^2/(x-y)^2]
(x^2-y^2/x)[-x^2/(x-y)^2]
(x^2-y^2/x)[-x^2/(x-y)^2]
(x^2-y^2/x)[-x^2/(x-y)^2]
=(x+y)(x-y)/x[-x²/(x-y)²]
=(x+y)(-x)/(x-y)
=-x(x+y)/(x-y)
原式=(x+y)(x-y)/x[-x^2(x-y)^2
=-x(x+y)/(x-y)
因式分解x(x+y)(x-y)-x(x+y)^2
化简y(x+y)+(x+y)(x-y)-x^2
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
[2/3x-2/x+y(x+y/3x-x-y)]/x-y/x
化简：{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x
计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x
化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x
x^2(x-y)+(y-x)
x(x-y)2-(y-x)3
(x+y)(x-y)-(x-y)^2如题 (x+y)(x-y)-(x-y)^2
【(x-y)^2+(x+y)(x-y)】除以 2x
[(x-y)²+(x+y)(x-y)]除以2x
【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y)
化简 3x(x^2-x-1)-(x+1)(3x^-x) X^3(x-y)+x(y-x)
y=x^2-2x（x
y=x^2+2x(x
(x^2-y^2/x)[-x^2/(x-y)^2]
3^x+2x=y,x